Mold for artificial-stone or concrete posts.



0. DOUGHERTY 6: J. W. 5; A. RARMSTRONG.

MOLD FOR ARTIFICIAL STONE OR CONCRETE POSTS.

APPLICATION FILED JUNE 20, 1907. 912,367.

Patented Feb. 16, 1909.

6' T3 MW I UNITED STATES PATENT OFFICE.

ORVILLE DOUGHERTY, JAMES W. ARMSTRONG, AND ADAM E. ARMSTRONG, onrHnEE'RIvE'BS, MICHIGAN, ASSIGNORS TO THE D'. AND A. POST MOLD COMPANY,or THREE RivERs, MIGHL GAN, A CORPORATION OF MICHIGAN.

MOLD FOR AR/JJIFIIIOIAL-S'llOIil'E OR CONCRETE FOSTE- Specification ofLetters Patent.

Patented Feb. 16, 1909.

w... mo em 20, 1907. Serial No. 379,931.

To all whom it may concern: 1

Be it known that we, ORVILLE Dooennnrr,

' JAMES W. ARMSTRONG, and ADAM E. ABM- srnonc, citizens of the UnitedStates, residing at the 'city of Three Rivers, county of St. Joseph, andState of Michigan, have invented certain new and useful Improvements inMolds for Artificial-Stone orConcrete Posts, of which the following is aspecification. 1,; a

This invention relates to improvementsin molds for artificial stone orconcrete'posts.

The main objects of this invention are:

first: to provide an improved moldfor ar-.-

tificial stone or concrete posts b the aid of which posts may be very'read' y manufactured; second: to provide an improved mold forartificial stone or concrete posts which may be readily removed from thepost after the post has been allowed to set or harden, or to artiallyset or harden: and third to provi e an improved device for insertingmetal cores or binding-strips into a detail si jug-device, abinding-strip being indicatedin position therein by means of dottedlines;

the post during the molding operation.

Further objects, and objects relating .to structural details, willdefinitel appear from the detailed descri tion to 0 ow.

Y We accomplish the o jects of our invention by the devices and; meansdescribed in.

the following specification.

The invention is clearly defined and pointed out in the claims.

A. structure embodying the features of our invention is clearlyillustrated in the accon i panying drawing forming a part of this Ispecification, in which:

Figure 1 is a detail side elevation ofour improved mold; F ig. 2 is adetail plan thereof, one end only bein shown Fig. 3 is an enlargeddetail longitu inal section taken on a line corresponding to line 3-3.of Fig.

'2;;-Fig. 4 is a transverse section taken on a line corresponding toline 4'4' of F i 3; Fi 5 is an inside perspective of one of theend-plates; Fig. 6 is a detail plan of the supporting trough for thebinding strips ,or.

cores for molding them in proper position to be engaged by t respondinto line 7-7 of Fig. 6; Fi 8 is deelevation of our improvedplaeeplacing-device; Fig. 7 is an enlarged cross-section taken on a line cor-I and Fig. 9 is a cross-section of the placingdevice, taken on a line.corresponding to line 9-9 of' Fig. 8.

Referring to the drawing, the, body 1 of our improved mold is formed ofsheet metal 1 and is preferably U-shaped in cross-section,- havingarounded bottom and sides flaringslightly outward; The side walls of thetrough are provided with outwardly -pro-' jecting flanges 2. The moldsare preferably posts. The end-plates 3 are provided with mturned flanges4 at the bottom and the side flanges 5 being preferably formed of asin-- gle piece of sheet metal. The bottom flanges 4 are providedwithholes 6 adapted to receive the downwardly-projecting lugs 6' 6n the bodyof the trough. These lugs are preferably formed by slitting the body andpunching down the metal, as clearly appears in Figs. 3 and 4. I

The side flanges 5' .ofthe end-plates are provided withupwardly-projecting lugs 7 adapted to be inserted through holes 8provided'therefor in the flanges of the body when the end-plates are inpositiorrthereon. The end-plates are preferably secured in position bythe buttons 10 which are pivoted to the body at 11 and, adapted to swingunder the end-plates after they are placed 1n position. The end-platesare preferably rectangular so that they provide a suitable tapered tosecure a suitable taper to the as p brace for holding the molds in anupright In practice, the moldsare filled and the.

material allowed to set atleast sufliciently to keep its form,- and themolds are inverted over a level surface, preferably of loose earth, asthey harden more perfectly when so supported. The end-plates are thenremoved, when the mold maybe readily lifted from the post. This may bedone without any danger of breaking or disturbing the ostmaterial,' asthe walls of the body yield -,sufliciently to release the post at allpoints,

and, at the same time the walls are effectively'su 'iportedby theend-plates so that the posts molded therein are uniform in size.

As a convenient means for inserting the binding-strips 'or'cores intothe posts, we provide an inserting device, preferably comprising a bar17 which is substantially the same length as the core or thebinding-strip to be inserted, and this bar is provided with a pluralityof fingers 18, the lingers having forks 19 thereon, adapted to receivethe core-strips 21. These lingers are preferably formed from flat bars,slitted at their lower ends, and the slit portions bent in oppositedirections to form forks, as ClBQ1'ly'QPPGZlIS in Fig, 9. With thebinding-strips thus supported throughout their length, they may bepushed into the material in the mold after it has been filled. Thisavoids the necessity of supporting the binding-cores during the fillingof the mold, and, as the material readily'fills in around the core,

after the placing'device has been withdrawn the binding-strips areentirely inclosed.

i vVe preferably provide the tingers 18 with a gage-pins 20 so thatthe'positio'n of the binding-core and the concrete material maydetermined by the user.

To aid in readily picking up the binding strips by the placing-device,we provide a I V-shaped trough 12, the same preferably consisting ofside walls and rectangular end-plates, whereby it is supported in anuprwht position.

On the inner wallsof the side-plates are rests 14 adapted to receive thebinding-strips and support them throughout the length placed overthesame (see Fig. 7).

thereof; The binding-strips are held upfrom the side-walls 12 by meansof the blocks readily 15 so that the placing device may be By thismeans, even though the binding-strips may be of flexible material, theymay be quickly picked up and placed in the plastic material and held asdescribed.

Having thus described our invention; what we claim asn'ew and desire tosecure by Letters Patent, is:

1. Ina mold, the combination of a troughlike sheet metal body U-shapedin cross-section, having outwardly projecting flanges at the top;end-plates for said body, having inturned flanges at their sides andbottoms, adapted to embrace said body, the bottom flanges of saidend-plates having holes there inand the side flanges having upwardlyprojecting lugs thereon, the flanges of said body having holes thereinadapted to receive said lugs, said body having lugs on the bottomthereof adapted to engage said holes in the bottom flanges of saidend-plates.

2. In a mold, the combination of a troughlike sheet metal body havingoutwardlyprojecting perforated portions at the top; an end plate forsaid body having inturned flanges at the sides thereof to embracethesidesof the body, said flanges having outwardly projecting lugs thereonadapted to engage the perforations in said projecting members on saidtrough, and a button on said body adapted to engage said end plate forsecuring it in position on said body.

In Witness whereof, we have herenn'o set our hands and seals in thepresence of two witnesses.

oiivniiia DJUGH'ER'IY. [n 5 nuts w. AlillS'lliONG. lL. s. l ADAMARMSTRONG. LL. 5.]

Witnesses:

RALPH R. LEDBETTER, EDWARD STOCKER.

